Who was the founder of the Brahmo Samaj?

The correct answer is Option (3) → Raja Rammohan Roy

Raja Rammohan Roy founded the Brahmo Sabha in 1828 in Calcutta; it later became the Brahmo Samaj. It worshipped one formless God and opposed idol worship, caste rules and practices such as sati, which Rammohan Roy campaigned against until it was banned in 1829. He is often called the father of the Indian Renaissance.